As far as content of melanin (natural pigment found in fish skin) is concerned, we can divide BIO KOLAGEN™ into three groups:

BIO KOLAGEN™ white - 50 ml containers
Minimal content of melanin, white pearl colour, consistency of gel, recommended for applications on face, neck and cleavage skin

BIO KOLAGEN™ grey - 50 ml containers
Medium content of melanin, grey colour, consistency of gel, recommended for all body applications

BIO KOLAGEN™ graphite - 50 ml containers
High content of melanin, graphite colour, consistency of gel, recommended for hair, nails and face skin in case of sunburn or as a natural UV filter.

More information in sections: effects and usage